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1. The two sides of a triangle are 50 and 70". Find the measure of the third angle,
2. The four sides of a quadrilateral are 40", 60", __ and 70". What is the measurement of the missing angle?
3. What is the sum of the measures of the angles of an octagon (8 sided polygon)​


Sagot :

Answer:

1.350

2.65

3.180 degrees

Step-by-step explanation:

di ako gaano matalino sa math kung mali pasensya na godbless:)